CN218257614U

CN218257614U - Rear axle assembly structure of electric vehicle

Info

Publication number: CN218257614U
Application number: CN202222283000.XU
Authority: CN
Inventors: 许虎
Original assignee: Henan Dongqi Intelligent Technology Co ltd
Current assignee: Henan Dongqi Intelligent Technology Co ltd
Priority date: 2022-08-30
Filing date: 2022-08-30
Publication date: 2023-01-10
Anticipated expiration: 2032-08-30

Abstract

The utility model belongs to the technical field of electric motor car accessory, especially, a rear axle assembly structure of electric motor car, the structure bradyseism effect to current rear axle is relatively poor, can't effectually reduce the problem to the impact of rear axle when the vehicle jolts, the following scheme is proposed, and it includes the transmission case, equal fixed mounting has the installation pipe on the left side inner wall of transmission case and the right side inner wall, and the one end that just two installation pipes kept away from each other extends to the left side and the right side of transmission case respectively, the rear side fixed mounting of transmission case has driving motor, and installs the intraductal sealed fixed mounting of pipe and have the oil blanket ring, and two oil blanket ring seals rotate and are connected with same transmission shaft, the utility model discloses can install the back at automobile body and two mounting panels, alright make blotter, arc spring steel sheet and the torsion spring who corresponds all be in the stress state to this can realize buffering the automobile body and support, can provide the shock attenuation protection when the vehicle motion.

Description

Rear axle assembly structure of electric vehicle

Technical Field

The utility model relates to an electric motor car accessory technical field especially relates to a rear axle assembly structure of electric motor car.

Background

When the rear axle encounters a bumpy road, the road condition bumps to cause the vehicle body to fluctuate up and down, the impact on the rear axle is large, the rear axle is easily damaged, the service life of the rear axle is influenced, and the normal driving of a vehicle is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the shock absorption effect of the structure with the rear axle in the prior art is poor, the shortcoming of the impact on the rear axle when the vehicle jolts can not be effectively reduced, and the rear axle assembly structure of the electric vehicle is provided.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a rear axle assembly structure of electric motor car, includes the transmission case, equal fixed mounting has the installation pipe on the left side inner wall of transmission case and the right side inner wall, and the one end that two installation pipes kept away from each other extends to the left side and the right side of transmission case respectively, the rear side fixed mounting of transmission case has driving motor, and installs the intraductal sealed fixed mounting and have the oil blanket ring, and two oil blanket ring internal seals rotate and are connected with same transmission shaft, the left end and the right-hand member of transmission shaft extend to the one side that two installation pipes kept away from each other respectively and equal fixed mounting have wheel hub, driving motor's output shaft extends to in the transmission case and fixed mounting have the initiative bevel gear, fixed cover is equipped with the driven bevel gear that is located the transmission case on the transmission shaft, initiative bevel gear meshes with driven bevel gear mutually, the top fixed mounting of installation pipe has the support cover, sliding connection has the ejector pin in the support cover, the top of ejector pin extends to the top and fixed mounting has the mounting panel of support cover, the front side and the rear side of support cover all install the buffering subassembly, and two buffering subassemblies are all connected with the bottom of mounting panel mutually.

Preferably, a cushion pad is fixedly mounted on the inner wall of the bottom of the support cover, and the top of the cushion pad is fixedly connected with the bottom end of the ejector rod.

Furthermore, the top rod can be elastically supported by the cushion pad, so that the vehicle body can be supported in an auxiliary manner after being mounted on the mounting plate.

Preferably, the buffering assembly comprises an arc-shaped spring steel plate, a limiting component, a rotating shaft and a gear component, the arc-shaped spring steel plate is fixedly connected with the side face of the supporting cover, the top of the arc-shaped spring steel plate is connected with the limiting component, the limiting component is connected with the bottom of the mounting plate, the rotating shaft is connected with the limiting component, and the gear component is respectively connected with the bottom of the mounting plate and the rotating shaft.

Furthermore, when the mounting panel receives the gravity downwardly movement of automobile body, can make two camber spring steel plates that correspond take place to warp by the pressurized, the elasticity of usable camber spring steel plate can carry out elastic support to the automobile body this moment.

Preferably, the limiting component comprises a limiting frame and a moving ring, the limiting frame is fixedly installed at the bottom of the installation plate, the moving ring is slidably sleeved on the limiting frame, the top of the arc-shaped spring steel plate is fixedly connected with the bottom of the moving ring, and the rotating shaft is fixedly installed on the side face of the moving ring.

Furthermore, sliding connection is carried out between the limiting frame and the moving ring, when the arc-shaped spring steel plate is pressed to deform, the arc-shaped spring steel plate can be kept connected with the mounting plate, and the gear component can be driven through the rotating shaft.

Preferably, the gear member comprises a gear and a rack, the gear is rotatably connected to one end of the rotating shaft, the rack is fixedly mounted at the bottom of the mounting plate, and the gear is meshed with the rack.

Furthermore, when the rotating shaft moves transversely along with the moving ring, the gear can be driven by the rotating shaft to move transversely, so that the gear can rotate when being meshed with the rack, and pressure is applied to the torsion spring conveniently.

Preferably, the rotating shaft is sleeved with a torsion spring, and two ends of the torsion spring are fixedly connected with one side of the moving ring and one side of the gear respectively.

Furthermore, the arc-shaped spring steel plate can be elastically supported by the aid of the elastic force of the torsion spring, and accordingly the arc-shaped spring steel plate can be assisted to buffer and support a vehicle body.

Has the advantages that:

1. in the utility model, the mounting plate is used for mounting and connecting with the vehicle body, at the moment, the mounting plate can bear the pressure of the vehicle body, so that the mounting plate can move downwards, the ejector rod can move downwards, the buffer cushion is in an elastic stress state, and the buffer cushion can be used for carrying out preliminary buffer and shock absorption on the vehicle body;

2. in the utility model, when the mounting plate moves downwards, the arc spring steel plate can be pressed, so that the arc spring steel plate is deformed under pressure, when the arc spring steel plate is pressed, the elastic potential energy of the arc spring steel plate can be utilized to buffer and support the vehicle body, and when the arc spring steel plate is deformed, the movable ring can transversely slide along the limiting frame, so that the torsion spring is in a stress state, the torsion spring in the stress state can assist in supporting the arc spring steel plate, and further the vehicle body can be supported in a damping way;

the utility model discloses can install the back at automobile body and two mounting panels, alright make blotter, camber spring steel board and the torque spring who corresponds all be in the stress state to this can realize cushioning the support to the automobile body, can provide shock attenuation protection when the vehicle motion.

Drawings

Fig. 1 is a structural three-dimensional view of a rear axle assembly structure of an electric vehicle provided by the present invention;

fig. 2 is a main sectional view of a rear axle assembly structure of an electric vehicle according to the present invention;

fig. 3 is a schematic structural diagram of a portion a in fig. 2 of a rear axle assembly structure of an electric vehicle according to the present invention;

fig. 4 is a side view of the connection structure of the support cover, the push rod and the mounting plate of the rear axle assembly structure of the electric vehicle provided by the present invention;

fig. 5 is a structural plan view of a rear axle assembly structure of an electric vehicle according to the present invention.

In the figure: 1. a transmission case; 2. installing a pipe; 3. an oil seal ring; 4. a drive shaft; 5. a hub; 6. a driven bevel gear; 7. a driving bevel gear; 8. a support housing; 9. an arc-shaped spring steel plate; 10. a limiting frame; 11. a moving ring; 12. a rotating shaft; 13. a gear; 14. a rack; 15. a torsion spring; 16. mounting a plate; 17. a top rod; 18. a cushion pad; 19. the motor is driven.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Example one

Referring to fig. 1-5, a rear axle assembly structure of an electric vehicle comprises a transmission case 1, wherein mounting pipes 2 are fixedly mounted on the inner wall of the left side and the inner wall of the right side of the transmission case 1 in a welding manner, one ends of the two mounting pipes 2, which are far away from each other, extend to the left side and the right side of the transmission case 1 respectively, a driving motor 19 is fixedly mounted on the rear side of the transmission case 1 in a bolt manner, oil seal rings 3 are fixedly mounted in the mounting pipes 2 in a welding manner, the two oil seal rings 3 are rotatably connected with the same transmission shaft 4 in a sealing manner, the left end and the right end of the transmission shaft 4 respectively extend to one sides of the two mounting pipes 2, which are far away from each other, and are fixedly mounted with hubs 5 in a bolt connection manner, an output shaft of the driving motor 19 extends into the transmission case 1 and is fixedly mounted with driving bevel gears 7 in a key connection manner, driven bevel gears 6 located in the transmission case 1 are fixedly mounted on the transmission shaft 4 in a key connection manner, the driving bevel gears 7 are meshed with the driven bevel gears 6, a support cover 8 is fixedly mounted on the top of the mounting pipes 2 in a welding manner, a push rod 17 is slidably connected with the support cover 8, the top of the mounting plate 17, and a buffer assembly 16 is mounted on the mounting plate, and a buffer assembly is fixedly mounted on the bottom side of the mounting plate, and is connected with a buffer assembly 16.

The utility model discloses in, there is blotter 18 through the mode fixed mounting that bonds on the bottom inner wall of support cover 8, and the top of blotter 18 and the bottom of ejector pin 17 through the mode fixed connection that bonds, utilizes blotter 18 to carry out elastic support to ejector pin 17 to this back of installing the automobile body on mounting panel 16 can assist and support the automobile body.

The utility model discloses in, the buffering subassembly includes camber spring steel plate 9, stop component, pivot 12 and gear member, camber spring steel plate 9 passes through welded mode fixed connection with the side of supporting cover 8, and camber spring steel plate 9's top is connected with stop component, stop component is connected with the bottom of mounting panel 16, pivot 12 is connected with stop component, the gear member is connected with the bottom and the pivot 12 of mounting panel 16 respectively, when the gravity downwardly moving that receives the automobile body at mounting panel 16, can make two camber spring steel plate 9 pressurized of correspondence take place deformation, usable camber spring steel plate 9's elasticity can carry out elastic support to the automobile body this moment.

The utility model discloses in, stop member includes spacing 10 and shift ring 11, spacing 10 is through welded mode fixed mounting in mounting panel 16's bottom, and shift ring 11 slip cap is established on spacing 10, welded mode fixed connection is passed through with shift ring 11's bottom at the top of camber spring steel sheet 9, pivot 12 fixed mounting is in shift ring 11's side, carry out sliding connection at spacing 10 and shift ring 11, can be when exerting pressure to camber spring steel sheet 9 and take place deformation, can realize keeping being connected with mounting panel 16, and can realize carrying out the transmission through pivot 12 to the gear member.

The utility model discloses in, the gear member includes gear 13 and rack 14, gear 13 rotates the one end of connecting in pivot 12, rack 14 passes through welded mode fixed mounting in the bottom of mounting panel 16, gear 13 meshes with rack 14 mutually, when pivot 12 carries out lateral shifting along with shift ring 11, accessible pivot 12 drives gear 13 and carries out lateral shifting, with this can make gear 13 when the meshing transmission with rack 14, rotate, the convenience is exerted pressure to torsion spring 15.

The utility model discloses in, the cover is equipped with torsion spring 15 in the pivot 12, and torsion spring 15's both ends pass through welded mode fixed connection with one side of shift ring 11 and one side of gear 13 respectively, utilize torsion spring 15's elasticity to carry out elastic support to camber spring steel sheet 9 to this can assist camber spring steel sheet 9 to cushion the support to the automobile body.

Example two

This example differs from example 1 in that: the cushion 18 may be replaced by a spring, but the spring has no stability, so that the vehicle body is easy to shake violently, and the stability of the vehicle body is influenced, so the cushion 18 is selected.

The utility model discloses in, utilize mounting panel 16 and automobile body to carry out erection joint, mounting panel 16 can bear the pressure of automobile body this moment, can make mounting panel 16 move down, can make ejector pin 17 move down, make blotter 18 be in the elasticity stress state, can utilize blotter 18 to carry out preliminary buffering shock attenuation to the automobile body, when mounting panel 16 moves down, can exert pressure to arc spring steel sheet 9, so that arc spring steel sheet 9 is in the pressurized and takes place deformation, when arc spring steel sheet 9 is pressurized, the elasticity potential energy that can utilize it to possess, cushion the support to the automobile body, and when arc spring steel sheet 9 takes place deformation, can make shift ring 11 along spacing frame 10 lateral sliding, alright make pivot 12 carry out lateral shifting this moment, gear 13 just can move along with shift ring 11, and gear 13 and rack 14 are in the meshing transmission state, so can rotate when gear 13 moves, alright make torsion spring 15 be in the stress state, torsion spring 15 that is in the stress state can assist the support arc spring steel sheet 9, further can realize carrying out the shock attenuation support to the automobile body equally, so as this can realize supporting the automobile body, can support when the buffer the vehicle body, can provide the shock attenuation motion;

when the driving motor 19 is started to drive the driving bevel gear 7 to rotate, the driving shaft 4 can be driven to rotate under the meshing transmission action of the driven bevel gear 6, so that the wheel can be rotated after the wheel is matched and installed with the hub 5.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a rear axle assembly structure of electric motor car, includes transmission case (1), its characterized in that, equal fixed mounting has installation pipe (2) on the left side inner wall of transmission case (1) and the right side inner wall, and the one end that two installation pipes (2) kept away from each other extends to the left side and the right side of transmission case (1) respectively, the rear side fixed mounting of transmission case (1) has driving motor (19), and installs pipe (2) inner seal fixed mounting have oil seal ring (3), and two oil seal ring (3) inner seal rotate and be connected with same transmission shaft (4), the left end and the right-hand member of transmission shaft (4) extend to one side that two installation pipes (2) kept away from each other and equal fixed mounting have wheel hub (5), the output shaft of driving motor (19) extends to in transmission case (1) and fixed mounting have initiative bevel gear (7), fixed cover is equipped with driven bevel gear (6) that are located transmission case (1) on transmission shaft (4), initiative bevel gear (7) mesh with driven bevel gear (6) and driven bevel gear (6) mesh mutually, the top that the top of installing pipe (2) support cover (8), the top that the ejector pin (17) support is connected with the ejector pin (17) and the ejector pin support subassembly (17) and be connected with the top is all installed, and the two buffer assemblies are connected with the bottom of the mounting plate (16).

2. The rear axle assembly structure of the electric vehicle as claimed in claim 1, wherein the inner wall of the bottom of the supporting cover (8) is fixedly provided with a cushion pad (18), and the top of the cushion pad (18) is fixedly connected with the bottom end of the top rod (17).

3. The rear axle assembly structure of the electric vehicle as claimed in claim 1, wherein the buffer assembly comprises an arc-shaped spring steel plate (9), a limiting member, a rotating shaft (12) and a gear member, the arc-shaped spring steel plate (9) is fixedly connected with the side surface of the support cover (8), the top of the arc-shaped spring steel plate (9) is connected with the limiting member, the limiting member is connected with the bottom of the mounting plate (16), the rotating shaft (12) is connected with the limiting member, and the gear member is respectively connected with the bottom of the mounting plate (16) and the rotating shaft (12).

4. The rear axle assembly structure of the electric vehicle as claimed in claim 3, wherein the limiting member comprises a limiting frame (10) and a moving ring (11), the limiting frame (10) is fixedly mounted at the bottom of the mounting plate (16), the moving ring (11) is slidably sleeved on the limiting frame (10), the top of the arc-shaped spring steel plate (9) is fixedly connected with the bottom of the moving ring (11), and the rotating shaft (12) is fixedly mounted at the side of the moving ring (11).

5. The rear axle assembly structure of the electric vehicle as claimed in claim 3, wherein the gear member comprises a gear (13) and a rack (14), the gear (13) is rotatably connected to one end of the rotating shaft (12), the rack (14) is fixedly mounted at the bottom of the mounting plate (16), and the gear (13) is engaged with the rack (14).

6. The rear axle assembly structure of the electric vehicle as claimed in claim 3, wherein the rotating shaft (12) is sleeved with a torsion spring (15), and two ends of the torsion spring (15) are respectively fixedly connected with one side of the moving ring (11) and one side of the gear (13).